<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
	<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
	<title>CSS</title>
	<link rel="stylesheet" href="css/style.css" />
	<style type="text/css">
		body{
			font-size: 40px;
		}
		span{
			color: green;
		}
	</style>

</head>
<body>
	1、css的写法
	<span style="color:red">我的颜色是红色1</span>
	<span >我的颜色是红色2</span>
</body>
</html>